A parachutist of weight ‘ w ’ strikes the ground with his legs fixed and comes to rest with an upward acceleration of magnitude 3 g . Force exerted on him by ground during landing is

A packet of weight w is dropped with the help of a parachute and on striking the ground comes to rest with retardation equal to twice the acceleration due to gravity. The force exerted on the ground is

A packet of weight W is dropped with the help of a parachuate and on striking the ground comes to rest with retardation equal twice the acceleration due to gravity. What is the force exerted on the ground

A packet of weight w is dropped with the help of a parachute and on strinking the ground comes to rest with retardation equal to twice the acceleration due to gravity. The foce exerted on the ground is

A student (m = 63 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.010 s. The average force exerted on him by the ground is +18,000 N, where the upward direction is taken to be the positive direction. From what height did the student fall ? Assume that the only force acting on him during the collision is that due to the ground.

A parachutist with total weight 75 kg drops vertically onto a sandy ground with a speed of 2 ms^(-1) and comes to a halt over a distance of 0.25 m . The average force from the ground on her is close to -

A balloon starts rising from ground from rest with an upward acceleration 2m//s^(2) . Just after 1 s, a stone is dropped from it. The time taken by stone to strike the ground is nearly

A balloon starts rising from ground from rest with an upward acceleration 2m//s^(2) . Just after 1 s, a stone is dropped from it. The time taken by stone to strike the ground is nearly